Time Remapping Expression – based on different layer

[Dan Ebberts]

You didn’t specify what happens if they’re not the same, but this should be close:


if (timeToFrames(time) == timeToFrames(comp("otherComp").layer(1).timeRemap))
comp("otherComp").layer(1).timeRemap
else
0


Dan

[Dan Turner]

Hmm, sorry I don’t think I’ve asked in the right way.

I’ve now put everything into the same composition in order to make it a bit easier, but it’s a bit of a circular problem.

Basically I have Layer 1 with Time Remapping applied – speeding up footage in curves.
So at 03776 frames in (comp), the Time Remapping value of Layer 1 is 04247

I want an expression on Layer 2 Time Remapping to say: at each Comp frame, look for the same value in Layer 1 Time Remapping, and use the related Comp frame number at that time as the Time Remapping value for Layer 2.

So at 04247 in comp, the Time Remapping value of Layer 2 would be 03776.

Essentially where Layer 1 is speeding up, I want Layer 2 to slow down inversely.

This could potentially also be done with a slider?

Many thanks indeed – this would be saving my life!

Dan

[Dan Ebberts]

Ah, that’s tricky. You might be able to take advantage of the characteristics of the curve you’re using for layer 1. For example, if it’s always increasing, your layer 2 expression could start at zero and cycle through layer 1’s time remapping values, frame-by-frame until you find the frame where layer 1’s time remapping value exceeds the current time. Something like that. It’s a bit of work, but it should be do-able.

Dan